Question? What is the difference between the different Si-Quat products that use the primary Active Ingredient 3-(trimethoxysilyl) propyldimethyloctadecyl ammonium?
Answer: The Silane Quaternary Ammonium Chloride Compound 3-(trimethoxysilyl) propyldimethyloctadecyl ammonium chloride, aka ‘Si-Quat’, was invented in the 1970s by DOW CORNING Chemical Company. The compound has been in use for over 40 years and has been proven to be safe and effective against a wide variety of microorganisms. Its unique structure allows the molecule to attach to almost any non-porous surface and fabrics and other types of textiles.
The Si-Quat molecule is licensed to manufacturers around the world and is commonly private labeled by dozens of companies. The chemistry of the products using the 3-(trimethoxysilyl) propyldimethyloctadecyl ammonium chloride compound, aka Si-Quat, is the same or very similar. The main variance in the active ingredient is typically the concentration level.
Below is a comparison chart of four popular Si-Quat products.
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| Silane Quaternary Ammonium Chloride (Si-Quat) Product Comparison Chart | Active Ingredient Concentration Level (%) | |||
| <<< Lowest to Highest >>> | ||||
| BIOPROTECT | BIOSPEAR | ZOONO | BIOSPADA | |
| ACTIVE INGREDIENT: | RTU | Surface Protectant | Microbe-Shield | 100 Protector |
| 3-(trimethoxysilyl) propyldimethyloctadecyl ammonium chloride | 0.50% | 0.84% | 1.00% | 1.00% |
| Other Ingredients | 99.50% | 99.16% | 99.00% | 99.00% |
| Total Ingredients | 100% | 100% | 100% | 100% |
| Cost Per Gallon | $81.00 | $75.00 | $225.00 | $70.00 |
| Value Ranker (Concentration and Cost) | LOW | GREAT | LOWEST | BEST |
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